acrotsr is an IRC game in which players are given an acronym. The players have a certain amount of time to think of what the acronym should stand for, then the people in the channel vote for the one they like most.

adept is a system for developing short courses for users needing to learn specific skills or knowledge. adept provides JIT ("just in time") learning, in contrast to the more usual "just in case" learning. It can be used as an intranet application to propagate knowledge to employees, or to educate customers via your homepage.

AFD is a program to automatically distribute files either locally or to remote hosts. The files are distributed by using FTP or SMTP, and can be sent in parallel and with priority. It provides a GUI to monitor and control the distribution and extensive logging of all activities.

aGNeS is a solid BBS system from Vestris Inc. aGNeS allows threaded discussions, article searching, archiving, thread expanding and collapsing, etc. It allows to setup as many web boards as desired with totally different layout , using one CGI. The look and feel of your forum can be just whatever you like using template pages. aGNeS is web-administrable. There are tons of features and options.

Agora is a Web-based, threaded discussion tool, similar to Usenet newsgroups.
Agora remembers each user's preferences, and allows threaded, unread-only
browsing. It offers the ability to manage several different groups, with
different themes, forums, and administrators for each group. Agora offers a
basic Web-based ICQ client, as well as a Web-based notes system.

IMIRC is an AOL Instant Messenger to IRC gateway. It connects to an IRC network as an IRC server, so it requires a local ircd to run. IMIRC creates nicknames for AIM users as they sign on, and converts HTML codes, which are used by AIM for formatting, to IRC's control code equivalents. Please note that you must either have your own working IRC server or you must find someone willing to let you link to theirs.

The Alamin GSM SMS Gateway is a group of daemons that allows you to send/receive SMS messages from any GSM device that supports AT+ commands (GSM modems or GSM mobile phones) or supported by Gnokii. A client program allows you to send messages from any IP client. An SMTP interface is provided to allow MTAs to send SMS directly to the GSM network. IMP (Incoming Message Processor) modules allows you to extend functionality to implement banking, network administration, bd querys, etc. from a GSM mobile phone.

Aliases2cdbm is a utility for converting mail aliases from a text file (e.g., /etc/aliases) into input suitable for the cdbmake utility. Cdbmake can then create a constant database (CDB) suitable for reliable, high-speed mail alias lookups.

Althea is an IMAP email client for X that uses the GTK widget set. It was built with the IMAP protocol in mind in order to avoid many of the pitfalls experienced by POP clients that added IMAP support. Althea allows easy access to a nearly unlimited number of servers, and has a very small memory footprint. As of version 0.5.0 Althea also supports IMAP over SSL.